package net;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.Scanner;

public class TcpEchoClient {
    private Socket socket = null;

    public TcpEchoClient(String serverIp, int serverPort) throws IOException {
        socket = new Socket(serverIp, serverPort);
    }

    public void start() {
        System.out.println("启动客户端！");
        Scanner scanner = new Scanner(System.in);
        try (InputStream inputStream = socket.getInputStream()) {
            try (OutputStream outputStream = socket.getOutputStream()) {
                Scanner reqScanner = new Scanner(inputStream);
                while (true) {
                    System.out.println("->> ");
                    String request = scanner.next();
                    PrintWriter writer = new PrintWriter(outputStream);
                    writer.println(request);
                    writer.flush();
                    String response = scanner.next();
                    System.out.printf("req: %s,resp: %s\n ", request, response);
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

    public static void main(String[] args) throws IOException {
        TcpEchoClient tcpEchoClient = new TcpEchoClient("127.0.0.1", 9090);
        tcpEchoClient.start();
    }
}
